Regulatory Capital (Tables)

3 Months Ended

Mar. 31, 2018

Banking and Thrift [Abstract]

Schedule of compliance with regulatory capital requirements under banking regulations

The following capital amounts and ratios are based upon the Bank’s assets.

	Actual				“Well Capitalized” Regulatory Requirements
	Amount		Ratio		Amount			Ratio
As of March 31, 2018:
Common Equity Tier 1 Capital (to Risk-Weighted Assets)	$	2,494,964	11.7	%	$	1,385,322	>	6.5	%
Tier 1 Capital (to Risk-Weighted Assets)	$	2,494,964	11.7	%	$	1,705,011	>	8.0	%
Total Capital (to Risk-Weighted Assets)	$	2,761,446	13.0	%	$	2,131,264	>	10.0	%
Tier 1 Capital (to Average Assets)	$	2,494,964	11.0	%	$	1,138,524	>	5.0	%
As of December 31, 2017:
Common Equity Tier 1 Capital (to Risk-Weighted Assets)	$	2,350,081	11.9	%	$	1,288,435	>	6.5	%
Tier 1 Capital (to Risk-Weighted Assets)	$	2,350,081	11.9	%	$	1,585,767	>	8.0	%
Total Capital (to Risk-Weighted Assets)	$	2,597,926	13.1	%	$	1,982,208	>	10.0	%
Tier 1 Capital (to Average Assets)	$	2,350,081	11.0	%	$	1,067,739	>	5.0	%